The term 'fit nicely' can be described by three crossword solutions: DOVETAIL (8 letters), MESH (4 letters), and NESTLED (7 letters). DOVETAIL is a type of joinery in which two pieces of wood are cut to interlock with each other. MESH is a material made of connected strands that form a net-like structure. NESTLED means to be settled snugly in a place. All three words describe the idea of fitting together nicely, either physically or figuratively.